Should a Battery Tender....
Drifting
Joined: Sep 2009
Posts: 1,862
Likes: 594
From: Prescott, Arizona
How much current is it putting out? Most tenders are 1 1/2 to 2 amps. If the battery is pulling max current that the tender should put out, it will quite warm but not Hot. If you have an infrared temperature gun, what is the actual temperature?
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From: Southlake, TX
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Burning Brakes
Joined: Aug 2013
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From: Lehigh Valley PA
2022 C5 of the Year Finalist - Modified
Thanks everyone! It gets hot but you can hold it for 5-10 seconds. Once it was back to fully charged and just maintaining it, it was not hot.
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The battery tender unused on my car does get pretty warm to the touch, but I don’t think I would call it hot.
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My BT jr. does something every once in awhile that is a bit strange. Maybe once in every 20 times I plug it in, it will stay on red for several hours, and get warm. If I unplug it, and plug it in a 2nd time, it flashes green for several seconds, and then turns solid green. It stays solid green, unless I'm working on something in the interior, and I have the door(s) open for an extended period. Then it will start flashing green, but it never gets red again. It is always red if I plug it in right after driving it, and I attribute that to the underhood heat generated by the headers. Car charges fine, never a hint of a low battery. Posting this so it hopefully helps someone.......